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The Ancient Mayfly Briefly Lives Only to Reproduce and DieÂ
animals.howstuffworks.com/insects/mayfly.htm
Mayflies have the shortest adult life span of any animal, but swarms of them can still be seen on weather radar.
How the F-Stop Works
electronics.howstuffworks.com/cameras-photography/tips/how-to-know-what-f-stop-to-use.htm
Want to know how to know what f-stop to use? Visit HowStuffWorks to learn what f-stop to use.
How a Marathon Works
entertainment.howstuffworks.com/marathon.htm
Marathons are 26.2 miles in length and have been known to cause death. Find out what marathons are all about and why anyone would run one.
How the Fisker Karma Works
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/fisker-karma.htm
The Fisker Karma is a luxury plug-in hybrid car. Get history, details and specs on the Fisker Karma in this article.
Super Bowl History Quiz
play.howstuffworks.com/quiz/super-bowl-history-quiz
Football fanatics, it's time to grind your way through this Super Bowl history quiz. Can you get an easy win by getting most of the questions right, or will you fall short right before the final whistle blows?
75 of the Hardest Riddles (With Answers) to Test Your Brain
lifestyle.howstuffworks.com/family/activities/hardest-riddles.htm
Challenge yourself with some of the hardest riddles we could find so you can keep your mind sharp! As you tackle these tricky brain teasers, you'll engage your mind in a way that few other activities can.
How does St. John's wort work?
health.howstuffworks.com/wellness/natural-medicine/herbal-remedies/question468.htm
How does St. John's wort work?
How Hulu Works
computer.howstuffworks.com/internet/basics/hulu.htm
Hulu lets you watch TV shows and movies online for free. So what's the catch? Is there a catch? See how Hulu works and Hulu's challenges.
How Scientific Peer Review Works
science.howstuffworks.com/innovation/scientific-experiments/scientific-peer-review.htm
Scientific peer review is a quality-control system that critiques all new scientific discoveries. Learn more scientific peer review and its flaws.
Where Have All the Seashells Gone?
science.howstuffworks.com/environmental/earth/oceanography/where-have-all-seashells-gone.htm
All that seashell collecting you've been doing actually hurts the environment.